T4 (Thyroxine), Total
This blood test measures the level of the hormone T4 (thyroxine), which the thyroid gland produces to aid in metabolism control and growth. This test is often ordered in conjunction with other thyroid tests such as T3 and TSH to evaluate thyroid function.
$44.00Price for members $22.00
Preparation: Please do not exercise prior to testing. It is best that your blood is taken in a rested state.